Improvement in air-cooling apparatus



ryA. HYATT; YAir-*Cooling Apparatus.

Patented March 30, |875.

- INVENTOR Attorneys 2 Sheets--Shet 2.

F. A. HYATT.

Rw 7. 8 0 3 In c r a. M d e t .n le St Uh t a r a p D. A g n o o C 5. 5l. 6 .l o N Attorneys 'THE GRAPHIC cu. Pu oro -Lmijas s. 41'PARK PLAGE.N.Y.

if Nrn FRANK A. HYATT, OF DENISON, TEXAS.

IMPROVEMENT IN AIR-COOLING APPARATUS.

Specification forming part of Letters Patent No. 161,515, dated March30, 1875; application filed October 13, 1874.

To all whom it may concern Beit known that I, F. A. HYATT, of Denison,in the county of Grayson and in the State of Texas, have inventedcertain new and useful Improvements in Refrigerators; and do herebydeclare that the following is a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings and to theletters of reference marked thereon, making a part of thisspecification.

The nature of my invention consists in the construction and arrangementof a refrigerator for the purpose of cooling and maintaining a lowr anddry temperature, for preserving fresh meats and vegetables, and forcooling rooms for any purpose, as will be hereinafter more fully setforth.

In order to enable others skilled in the art to which my inventionappertains to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the annexed drawings, in which-Figure l is a perspective view of my refrigerator. Fig. 2 is atransverse'vertical section, and Fig. 3 a longitudinal vertical section,of the same. Fig. 4. is an end view of the outside box, with the nozzleremoved.

A represents the outside box or tank, which I prefer to make ten feetsix inches wide, thirty-six feet long, and one foot eight inches high,open on top. It may be made of wood or metal; when of wood, it should bemade of two-inch plank, matched and put together with white lead. Theends and middle of the box will then be secured at top and bottom withive-eighth-inch bolts and four-by-six pieces, B, of wood will be boltedonto the inside of the box at the top, and extending the entire lengthof the box. These pieces are for the purpose of giving strength to thebox, and to secure certain pieces, C, that run cross-piece above theair-box to hold it down. On the bottom of the box or tank A are placedeleven bars, a, which extend to within three inches of the ends of thebox. The outside ones of these bars are placed three inches from thesides of the box, and the ten spaces divided equally by the other barsto furnish supports for the air-box D. This box will be made ofgalvanized iron, and will be ten feet wide, thirty-live feet six incheslong, and four inches high. The bottom of the box D is laid on thesupports or bars a in the bottom of the tank, and similar bars b arelaid upon this bottom, directly over those underneath, and extending towithin three inches of the end where the air enters, and to within aboutfive inches at the end next to the blower. The top sheet of the airbox Dwill rest upon the bars b.

Great care must be taken in the construction of this box, and it must bemade before the sides and ends of the tank are set up.

Ten pipes, E, six inches in diameter, are inserted at the end of theair-box D, in the center of the spaces made by the bars b, and extendinga little higher than the edges of the tank. At the other end of theair-box ten short tubes, d, are inserted, and pass through the outsidebox or tank A. These tubes vary in size from four inches at the sides totwo and a half inches in the center, to prevent too much air from beingdrawn from the center holes which are nearest to the blower. Care mustbe taken to prevent leakage where the tubes d pass through the end ofthe tank A. G is an iron nozzle, fastened to the end of the tank A. Thisnozzle is four inches in the depth at the base, and nine feet six incheswide' at the base, so as to cover the ends of the pipes el, and tapersto a point from its width six inches in diameter. A Roots sixinch blowerwill be attached to the end of the nozzle G, so as to draw the air outof the box, but any blower with suction-pipe will answer. The tank A isfilled with brine, heavily salted, and a pump, with the capacity ofabout three hundred and fifty gallons per minute, will be used tocirculate the brine.

This cooler is designed to be attached to a Boyles or other suitableicemachine, and cold is produced in the tank by means oftheevaporating-pipe H of the ice-machine, which pipe is two thousand feetin length, and is placed in the tank upon the braces C, over theair-box. Wood is preferably used in constructing the outside tank, toprevent moisture from condensation upon the outside, as well as for itscheapness. Where iron is used, a drip-floor of wood underneath will benecessary.

This refrigerator should be suspended near the ceiling, or, what isbetter, in an elevated structed, and as near air-tight as possible.,

The air of the room is passed constantly through the air-box by means ofthe blower, and all moisture is condensed, and the air is kept cold andfree from moisture. It' the air is drawn equally from all the spacesofthe airboX, the result'will be as good as a single pipe three hundredand fifty feet in length would produce, and the friction is much less. A

l slight inclination is given to the whole tank toward the end where theblower is attached,

and the air-box will have sufficient inclination to the center, so thatall condensed moisture inside of the air-box will pass off through apipe attached through the bottom of the tank to the air-box at thecenter ofthe end next to the blower.

This cooler is intended to be attached to an ice-machine of a `capacityof ve tons per day, but may be used with a much larger machine, bysimply adding another tank for an additional evaporating-pipe, andincreasing the size of the blower.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

In combination with the tortuous pipe H and box or tank A, havinglongitudinal bars a on its bottom, the air-box D, divided by bars b intolongitudinal spaces, the air-inlet pipes E, exit-pipes D of varyingsize, and the nozzle G, all constructed substantially as and for thepurposes herein set forth.

In testimony that I claim the foregoing I have hereunto set my hand this28th day of September, 1874.

F. A. HYATT.

Vitnesses:

R. A. IIAYns, HUGH MACDONALD.

